<template>
    <div>
        <div style="margin: 10px 0 ">
            <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>
            <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
            <el-button type="warning" @click="reset">重置</el-button>
        </div>
        <div style="margin: 10px 0 ">
            <el-button type="primary"@click="save">新增<i class="el-icon-circle-plus-outline"></i></el-button>
            <el-popconfirm
                    confirm-button-text='好的'
                    cancel-button-text='不用了'
                    icon="el-icon-info"
                    icon-color="red"
                    title="这是一段内容确定删除吗？"
                    @confirm="del2"
            >
                <el-button class="ml-5 mr-5" type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i></el-button>
            </el-popconfirm>
        </div>
        <el-table :data="tableData" header-cell-class-name="headerBg" @selection-change="handleSelectionChange">
            <el-table-column
                    type="selection"
                   >
            </el-table-column>
            <el-table-column  prop="id" label="ID"    >
            </el-table-column>
            <el-table-column prop="name" label="名称" >
            </el-table-column>
            <el-table-column prop="description" label="描述" >
        </el-table-column>
            <el-table-column>
                <template slot-scope="scope">
                    <el-button type="info" @click="selectMenu(scope.row)">分配菜单 <i class="el-icon-menu"></i></el-button>
                    <el-button type="success" @click="handleEdit(scope.row)">编辑 <i class="el-icon-edit"></i></el-button>                    <el-popconfirm
                            confirm-button-text='好的'
                            cancel-button-text='不用了'
                            icon="el-icon-info"
                            icon-color="red"
                            title="这是一段内容确定删除吗？"
                            @confirm="del(scope.row.id)"
                    >
                        <el-button class="ml-5" type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
                    </el-popconfirm>
                </template>
            </el-table-column>
        </el-table>
        <el-dialog title="角色信息" :visible.sync="dialogFormVisible" width="30%" >
            <el-form label-width="80px" size="small">
                <el-form-item label="名称">
                    <el-input v-model="form.name" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="唯一标识">
                    <el-input v-model="form.flag" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="描述">
                    <el-input v-model="form.description" autocomplete="off"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="savaFalse">取 消</el-button>
                <el-button type="primary" @click="saveTure">确 定</el-button>
            </div>
        </el-dialog>

        <div style="padding: 10px 0 ">
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="pageNum"
                    :page-sizes="[2, 5, 10, 15]"
                    :page-size="pageSize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
        </div>
        
        <el-dialog title="菜单分配" :visible.sync="menuDialogVis" width="30%">
            <el-tree
                    :props="props"
                    :data="menuData"
                    ref="tree"
                    show-checkbox
                    :default-expanded-keys="expends"
                    :default-checked-keys="checks"
                    node-key="id"
            >
                <span class="custom-tree-node" slot-scope="{ node, data }">
            <span><i :class="data.icon"></i> {{ data.name }}</span>
         </span>
            </el-tree>
            <div slot="footer" class="dialog-footer">
                <el-button @click="savaFalse">取 消</el-button>
                <el-button type="primary" @click="saveMenuRole">确 定</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
    import request from "@/utils/request";
    export default {
        name: "User.vue",
        data(){
            return{
                pageNum:1,
                pageSize:2,
                tableData:[],
                menuData:[],
                total:0,
                ta:[],
                form:{

                },

                multipleSelection:[],
                name:"",
                roleId:0,
                roleFlag:"",
                dialogFormVisible:false,
                menuDialogVis:false,
                props: {
                    label: 'name',
                },
                expends:[],
                checks: [],
                ids:[],




        }
        },
        created() {
            this.load()
        },
        methods:{
            saveMenuRole(){
                request.post("/role/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
                    if (res.code === '200') {
                        this.$message.success("绑定成功")
                        this.menuDialogVis = false

                        // 操作管理员角色后需要重新登录
                        if (this.roleFlag === 'ROLE_ADMIN') {
                            this.$store.commit("logout")
                        }

                    } else {
                        this.$message.error(res.msg)
                    }
                })
            },

            load(){
                request.get("/role/page",{
                    params:{
                        pageNum:this.pageNum,
                        pageSize:this.pageSize,
                        name:this.name,

                    }
                }).then(res=>{
                    this.tableData=res.records
                    this.total=res.total

                })
                // fetch("http://localhost:9999/user/page?pageNum="+this.pageNum+"&pageSize="+this.pageSize+"&username="+this.username).then(res=>res.json()).then(res=>{
                //   this.tableData=res.data
                //   this.total=res.total
                // })
                request.get("/menu/ids").then(r => {
                    this.ids = r.data
                })
            },
            handleSizeChange(pageSize){
                this.pageSize=pageSize
                this.load()
            },
            handleCurrentChange(pageNum){
                this.pageNum=pageNum
                this.load()
            },
            save(){
                this.dialogFormVisible = true
                this.form={}
            },
            saveTure(){
                request.post("/role",this.form).then(res=>{
                    if(res){
                        this.$message.success("保存成功")
                        this.dialogFormVisible=false,
                        this.load()
                    }
                    else {
                        this.$message.error("保存失败")
                        this.dialogFormVisible=false
                        this.load()
                    }

                })
            },
            savaFalse(){
                this.menuDialogVis=false,
                    this.dialogFormVisible=false
                this.form={}
            },
            edit(row){
                this.form=row
                this.menuDialogVis=true
            },

del(id){
    request.delete("/role/"+id).then(res=>{
        if(res){
            this.$message.success("删除成功")

            this.load()
        }
        else {
            this.$message.error("删除失败")

            this.load()
        }
    })
},
            handleSelectionChange(val){
                this.multipleSelection=val
            },

del2(){
           let ids = this.multipleSelection.map(item=>item.id)

    request.post("/user/batch",ids).then(res=>{
        if(res){
            this.$message.success("批量删除成功")
// if(!this.tableData){
//     thie.pageNum=thie.pageNum-1
// }

            this.load()
        }
        else {
            this.$message.error("批量删除失败")

            this.load()
        }

    })
},
            reset(){
                this.username=""
                this.email=""
                this.address=""
                this.load()
            },
            selectMenu(role) {

                this.roleId = role.id
                this.roleFlag = role.flag


                // 请求菜单数据
                request.get("/menu").then(res => {
                    this.menuData = res.data
                    console.log(this.menuData)
                    // 把后台返回的菜单数据处理成 id数组
                    this.expends = this.menuData.map(v => v.id)
                })
                request.get("/role/roleMenu/" + this.roleId).then(res => {
                        this.checks = res.data
                        this.ids.forEach(id => {
                            if (!this.checks.includes(id)) {
                                // 可能会报错：Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'setChecked')
                                this.$nextTick(() => {
                                    this.$refs.tree.setChecked(id, false)
                                })
                            }
                        })
                })
                this.menuDialogVis=true
            },
            handleEdit(row){
                this.form = row
                this.dialogFormVisible=true
            }


        }
    }

</script>

<style scoped>

</style>